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https://issues.apache.org/jira/browse/QPID-7505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Wall updated QPID-7505:
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Summary: [JMS AMQP 0-x Client] [AMQP 0-10] Synchronous #receive(long) might
return null even though there are messages on the queue and client has enough
credit (was: [JMS AMQP 0-x Client] Synchronous #receive(long) might return
null even though there are messages on the queue and client has enough credit)
> [JMS AMQP 0-x Client] [AMQP 0-10] Synchronous #receive(long) might return
> null even though there are messages on the queue and client has enough credit
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-7505
> URL: https://issues.apache.org/jira/browse/QPID-7505
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.18, 0.20, 0.22, 0.24, 0.26, 0.28, 0.30, 0.32,
> qpid-java-6.0, qpid-java-6.0.1, qpid-java-6.0.2, qpid-java-6.0.3,
> qpid-java-6.0.4, qpid-java-6.0.5, qpid-java-6.1
> Reporter: Alex Rudyy
> Assignee: Keith Wall
> Fix For: qpid-java-6.0.7, qpid-java-client-0-x-6.3.0,
> qpid-java-6.1.3
>
>
> As part of changes made for QPID-1642 the functionality of
> BasicMessageConsumer_0_10#receive(long) was changed to force message delivery
> by sending message.flush when there is no message present locally in a
> consumer queue. The message.flush is followed by the message.flow to restore
> the credit as message.flush forces the broker to exhaust its credit supply
> making it zero when message.flush command completes. However, no sync is sent
> after sending message flow. As result, in some cases the credit is not
> restored promptly impacting various messaging scenarios when message is
> published immediately after receive() is called but the published message is
> delivered to another consumer because credits are not restored after
> message.flush
> This problem was detected by the sporadic failure of ConsumerPriorityTest on
> the 0-10 path.
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